4
IQ plus 350 Installation Manual
2.0
Installation
This section describes procedures for connecting load
cells, digital inputs, and serial communications cables
to the IQ plus 350 indicator. Instructions for field
i n s t a l l a t i o n o f t h e a n a l o g o u t p u t o p t i o n a n d
replacement of the CPU board are included, along
with assembly drawings and parts lists for the service
technician.
•
Use a wrist strap to ground yourself and protect
components from electrostatic discharge (ESD)
when working inside the indicator enclosure.
•
This unit uses double pole/neutral fusing which
c o u l d c r e a t e a n e l e c t r i c s h o c k h a z a r d .
Procedures requiring work inside the indicator
m u s t b e p e r f o r m e d b y q u a l i fi e d s e r v i c e
personnel only.
2.1
Unpacking and Assembly
Immediately after unpacking, visually inspect the IQ
plus 350 to ensure all components are included and
undamaged. The shipping carton should contain the
indicator with attached tilt stand, this manual, and a
parts kit. If any parts were damaged in shipment,
notify Rice Lake Weighing Systems and the shipper
immediately.
The parts kit contains the items listed below:
•
Capacity and identification labels.
•
Two 8-32NC x 7/16 fillister head screws (PN
30623). These screws occupy the holes below
and on either side of the setup screw on the
indicator backplate (see Figure 2-4 on page
7).
•
Four 8-32NC x 3/8 machine screws (PN
14862) for the indicator backplate (see #24 in
Figure 2-5 on page 9).
•
Six neoprene washers (PN 45042) for
backplate screws included in the parts kit.
•
Four rubber bumpers (“feet”) for the tilt stand,
PN 42149.
•
Five cable ties, PN 15631.
2.2
Enclosure Disassembly
The indicator enclosure must be opened to connect
cables for load cells, communications, digital inputs,
and analog output.
The IQ plus 350 has no on/off switch.
Before opening the unit, ensure the
power cord is disconnected from the
power outlet.
Ensure power to the indicator is disconnected, then
place the indicator face-down on an antistatic work
mat. Remove the screws that hold the backplate to the
enclosure body, then lift the backplate away from the
enclosure and set it aside.
2.3
Cable Connections
The IQ plus 350 provides four cord grips for cabling
into the indicator: one for the power cord, three to
accommodate load cell, communications, digital
inputs, and analog output cables. Two of the three free
cord grips come with a plug installed to prevent
moisture from entering the enclosure. Depending on
your application, remove the plug from any cord grip
that will be used and install cables as required.
NOTE:
Because the IQ plus 350 has no on/off switch,
the power cord serves as the power disconnect. The
power outlet must be located close enough to the
indicator to allow the operator to easily disconnect
power to the unit.
Figure shows the recommended assignments for the
IQ plus 350 cord grips.
Figure 2-1. Recommended Cord Grip Assignments
Caution
Warning
AC Power Cord
Load Cell Cable
Serial Communications
Analog Output, Digital Input
